Home / 2,549.07-3,512.96-1,988.65

Finding the Fourth Proportional to 2,549.07, 3,512.96 and 1,988.65

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Solution

The fourth proportional to 2,549.07, 3,512.96 and 1,988.65 is: 2,740.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,549.07 : 3,512.96 = 1,988.65 : x
  2. Step 2: Convert to fraction form
    2,549.07/3,512.96 = 1,988.65/x
  3. Step 3: Cross multiply
    2,549.07x = 3,512.96 × 1,988.65
  4. Step 4: Simplify right side
    2,549.07x = 6,986,047.90
  5. Step 5: Solve for x
    x = 6,986,047.90/2,549.07
  6. Step 6: Final answer
    x = 2,740.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.